Thats insane. I was messin with my dogs once howling across the yard and didnt have it on and they found me every time. I would zig zag and what did the dogs do.... they zig zaged in the same way i did until they found me. Then i got an idea. I went in the house put on some scent elimination products and went out there and howled a couple times and they came into the yard sniffling all over the place and didnt find me!!!! My conclusion, They are the mythbusters they dont know what they are talking about and they need to get a life.